Arkansas investigators are looking into a bomb threat that forced the evacuation of about 250 students and employees at Arkansas State University.

Arkansas investigators are looking into a bomb threat that forced the evacuation of about 250 students and employees at Arkansas State University.

Interim dean Jeff Bailey says campus police alerted him late Monday afternoon that a note found in a restroom indicated there was a bomb in a building and evacuations were needed. According to a statement released by school officials, the library and part of the education building were emptied.

Senior Associate Vice Chancellor Glen Jones says bomb-sniffing dogs were brought in but they didn't find any device.

There were no reports of injuries. The buildings reopened Tuesday.

Jones said university police and state law enforcement are actively investigating the bomb threat.